Product Brochure

Features and Benefits• Broad chemical compatibility for

use with a wide range of harsh

solutions

• Lower compression set provides

better ability to handle temperature

and pressure variations, shaft

misalignment, and o-ring shrinkage

• Low-temperature capabilities

(-22°F/-30°C)

Sealing SolutionsGreene Tweed’s Chemraz® 505, a perfluoroelastomer, provides a broad range of chemical resistance, and is available for use as o-rings, gaskets, and many other custom shapes. Because of its versatility, Chemraz® 505 is often used as a standard compound and can be found in a variety of applications, including acids, caustics, aldehydes, esters, ethers, aromatics, hot water, steam, amines, methanol, ketones, TBA, and MTBE. With a temperature range of -22°F to 446°F (-30°C to 230°C), Chemraz® 505 is ideal for processes in subzero temperatures and for use

in multisubstance plants or in mixed media due to its broad chemical resistance.

Applications• Mechanical seals• Valves• Pump housings• Reactors• Compressors

www.gtweed.com

Statements and recommendations in this publication are based on our experience and knowledge of typical applications of this product and shall not constitute a guarantee of performance nor modify or alter our standard warranty applicable to such products.

© 2018, Greene Tweed all rights reserved. All trademarks are property of their respective owners. 08/18-GT EN-DS069-US-08-29-2016

Contact UsGreene Tweed Houston, TX, USA

Tel : +1.281.765.4500Fax: +1.281.821.2696

Chemraz® 505Universal Compound

• Sampling/metering equipment• Mixers• Controls/instrumentation• Sprayers/dispensers• Coupling

Typical Properties

Physical Properties (ASTM Standard) Typical

Color Black

Specific Gravity (D297) 1.93

Hardness, Shore A, Points (D2240) 75

Mechanical (ASTM Standard)

Compression Set, 70 Hours @ 400°F (204°C) @ 25% Deflection, % (D395)

25

Elongation @ Break, % (D1414) 140

Modulus @ 50% Elongation, psi (MPa) (D1414) 450 (3.1)

Modulus @ 100% Elongation, psi (MPa) (D1414) 1,150 (7.9)

Tensile Strength @ Break, psi (MPa) (D1414) 1,750 (12)

Thermal

Service Temperature Range, °F (°C)-22°F to 446°F

(-30°C to 230°C)

* Note: Unless otherwise indicated, all tests are performed on -214 o-rings.

www.gtweed.com

Statements and recommendations in this publication are based on our experience and knowledge of typical applications of this product and shall not constitute a guarantee of performance nor modify or alter our standard warranty applicable to such products.

© 2018, Greene Tweed all rights reserved. All trademarks are property of their respective owners. 08/18-GT EN-DS069-US-08-29-2016

Contact UsGreene Tweed Houston, TX, USA

Tel : +1.281.765.4500Fax: +1.281.821.2696

Chemraz® 505 can be used in applications exposed to the following media:

Hot water and steam Seawater, demineralized water, deionized water, boiler feedwater

Amines Ethanol amine, ethylene diamine, butylamine, monomethyl amine

Inorganic acidsSulphuric acid, nitric acid, hydrochloric acid, phosphoric acid, hydrofluoric acid

Organic acids Formic acid, acetic acid, diacetic acid, benzoic acid, terephthalic acid

Bases Sodium hydroxide, potassium hydroxide, ammonium hydroxide

Aldehydes Formaldehyde, acetaldehyde, butyraldehyde, benzaldehyde

Aromatic media Benzene, toluene, phenol, chlorobenzene, aniline, xylene, benzyl chloride

Aliphatic media Methane, ethane, ethylene, acetylene

Alcohols Methanol, ethanol, propanol, benzyl alcohol, ethylene glycol

Ether Dimethyl ether, diethyl ether, ethylene oxide

Esters Acetate, acrylate, phthalate

Ketones Acetone, methylethylketone (MEK), diethylketone

SolventsMethylene chloride, dimethyl formamide (DMF), tetrahydrofuran (THF), MTBE